| Primary satellite | Secondary satellite |
| Name | SL-08 R/B | deb Agena D |
| Spacetrack catalog number | 27819 | 5067 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 22 10:35 | 2021 Apr 22 10:28 |
| Time of closest approach (UTC) | 2021 Mar 03 23:55:25.844 |
| Minimum distance | 25.398 km |
| Height difference | 1.927 km |
| Relative speed | 12.653 km/s |
| Angle between velocity vectors | 119° |
| Geographic position | 79.5°N, 16.7°W |
| Height | 1031 km |
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